A day after promoting quarterbacks coach Adam Gase, 34, to offensive coordinator, Broncos coach John Fox added some experience to his staff in Knapp, an 18-year veteran of the NFL.

Knapp, 49, was the Raiders' offensive coordinator last season, a position he also held from 2007-08, and also led the offensive staffs in Seattle (2009), Atlanta (2004-06) and San Francisco (2001-03).

He's also been QB coach in Houston (2010-11) and with the 49ers (1998-2000).

Fox called Knapp a "proven, experienced coach with a very impressive background working with quarterbacks. He's had success with Pro Bowlers and established players while also being instrumental in the development of younger quarterbacks."